M1ck3y

8l90?

Is it typical to not replace the filter when doing a trans fluid change? reason I ask is because the shop that installed my headers/exhaust welded a clamp from the ypipe onto the catback. So I wouldn’t be able to drop the ypipe unless I take a grinder to it…

I drive a 17, and it is tuned. I posted here because I’m trying to get as many knowledgeable responses as possible. The driveshafts on k2’s go out 120 - 130. And I’ve read that the max tow trucks came with a lower top speed around 90 or something (down from 100). So I assumed it must have dropped because of the 3.42 ratio. Which is a substantial drop for such a small change. I was hoping someone would have specific information regarding my driveshaft. The shop I’m working with wasn’t much help.

Right, I’m wondering how much my top speed will drop after changing gears…

Yeah, 8l90e So you had to change the carrier for 3.73s?

Any thoughts on how changing gears will affect the driveshafts critical speed?

Yeah I was thinking 4.10s, maybe even 4.30s max. Problem is 3.73s is the max size for 9.76 and the shop I’m working with won’t do a gear kit that has a spacer (to fit a larger gear).

They’re 285/65r18. Sidewall says 33”, tire Calc will say 32.6”

I have 3.23s with 33” tires so it’s really around 3.10 now. Im just not sure if a move to 3.73s would be enough to be noticeable..

3.23, 33” tires, 4wd. Looking for improvement in acceleration..

Is a gear swap worth it? Better acceleration?

Gear swap to 3.73s worth it?

Didn’t know they made a 63r. Thanks

Thoughts on using this filter? I recently put a btr 220 cam in, dod delete, upgraded trunnions. The shop that did the work says they use this filter in all of the LT based cars, trucks they modify.

Was dynoed in 4th Regretting I didn’t do the intake manifold. Looking at getting btrs truck intake now. Doing a gear swap, and potentially the drive shaft